Minor mag. 0.7 earthquake - 20 Km E of Castle Rock, Washington, USA, on Tuesday, 30 March 2021 at 09:48 (GMT) -
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Minor magnitude 0.7 earthquake at 16 km depth
30 Mar 17:22 UTC: First to report: USGS after 8 hours.
Date & time: 30 Mar 2021 09:48:29 UTC -
Depth: 15.9 km
Epicenter latitude / longitude: 46.26333°N / 122.6455°W (Washington, United States)
Nearest volcano: Mount St. Helens (37 km / 23 mi)
Nearby towns and cities:
20 km (13 mi) E of Castle Rock (pop: 2,180) --> See nearby quakes!
24 km (15 mi) ENE of Kelso (Cowlitz County) (pop: 11,900) --> See nearby quakes!
26 km (16 mi) ENE of Longview (Cowlitz County) (pop: 36,800) --> See nearby quakes!
69 km (43 mi) N of Vancouver (pop: 172,900) --> See nearby quakes!
82 km (51 mi) N of Portland (Oregon) (pop: 632,300) --> See nearby quakes!
87 km (54 mi) NNE of Hillsboro (Oregon) (pop: 102,300) --> See nearby quakes!
87 km (54 mi) N of Gresham (Oregon) (pop: 110,600) --> See nearby quakes!
87 km (54 mi) N of Beaverton (Oregon) (pop: 96,600) --> See nearby quakes!
87 km (54 mi) N of Aloha (Oregon) (pop: 49,400) --> See nearby quakes!
88 km (55 mi) SSE of Olympia (pop: 50,300) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 7.1 x 105 joules (0.197 kilowatt hours) More info
Data for the same earthquake reported by different agencies
Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
|0.7||16 km||20 Km E of Castle Rock, Washington, USA||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.At magnitude 0.7, such a quake wouldn't normally be felt by people, but could be recorded instrumentally.